Office Depot has the Logitech V550 Nano USB Cordless Laser Mouse in Sliver, model no. 910-000695, for $19.99 (44.99 – 25 MIR) with Free Shipping for a limited time. The $25 mail-in rebate is good till October 31, 2009. This 3-button mouse features a miniature, wireless USB receiver that can remain plugged into your computer’s USB port at all times.